The beginning of this chapter made me smile; I love reading about students getting to Hogwarts for the first time. I think you do a good job of capturing the chaotic atmosphere, and Albus's feelings as he first gets off the train.

I like your characters so far too, especially Chloe. I had to laugh at her reaction to Albus and Rose (though I found it odd that they didn't realize their parents were famous), and I can see the three of them become good friends eventually. If Chloe can ever learn to be normal around them, that is :) And I'm very interested in getting to know Scorpius better...he's very intriguing.

I would definitely be interested in reading on! You've got a good first chapter, and I think this could really become an awesome story. Keep it up!